### Function

# GLib rc_box_alloc0

since: 2.58

#### Declaration [src]

    gpointer
    g_rc_box_alloc0 (
      gsize block_size
    )

#### Description [src]

Allocates `block_size` bytes of memory, and adds reference counting semantics to it.

The contents of the returned data is set to zero.

The data will be freed when its reference count drops to zero.

The allocated data is guaranteed to be suitably aligned for any built-in type.

Available since: 2.58

#### Parameters

`block_size`

  Type: `gsize`

  The size of the allocation, must be greater than 0.

#### Return value

Type: `gpointer`

A pointer to the allocated memory.

The caller of the function takes ownership of the data, and is responsible for freeing it.